Fireplace mantelpiece



FIG. 1 is a perspective view of a fireplace mantelpiece showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof, the left side being a mirror image of that shown;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a bottom plan view thereof.

The broken-line showing of the fire screen doors in FIGS. 1 and 3 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a fireplace mantelpiece, as shown and described. 